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<a name="1" href="#1">1</a>   <em class="comment">/*</em>
<a name="2" href="#2">2</a>   <em class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a name="3" href="#3">3</a>   <em class="comment"> * contributor license agreements.  See the NOTICE file distributed with</em>
<a name="4" href="#4">4</a>   <em class="comment"> * this work for additional information regarding copyright ownership.</em>
<a name="5" href="#5">5</a>   <em class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a name="6" href="#6">6</a>   <em class="comment"> * (the "License"); you may not use this file except in compliance with</em>
<a name="7" href="#7">7</a>   <em class="comment"> * the License.  You may obtain a copy of the License at</em>
<a name="8" href="#8">8</a>   <em class="comment"> * </em>
<a name="9" href="#9">9</a>   <em class="comment"> *      <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="10" href="#10">10</a>  <em class="comment"> * </em>
<a name="11" href="#11">11</a>  <em class="comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="12" href="#12">12</a>  <em class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="13" href="#13">13</a>  <em class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="14" href="#14">14</a>  <em class="comment"> * See the License for the specific language governing permissions and</em>
<a name="15" href="#15">15</a>  <em class="comment"> * limitations under the License.</em>
<a name="16" href="#16">16</a>  <em class="comment"> */</em>
<a name="17" href="#17">17</a>  
<a name="18" href="#18">18</a>  <strong>package</strong> org.apache.log4j.net;
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  <strong>import</strong> org.apache.log4j.AppenderSkeleton;
<a name="21" href="#21">21</a>  <strong>import</strong> org.apache.log4j.Level;
<a name="22" href="#22">22</a>  <strong>import</strong> org.apache.log4j.Layout;
<a name="23" href="#23">23</a>  <strong>import</strong> org.apache.log4j.xml.UnrecognizedElementHandler;
<a name="24" href="#24">24</a>  <strong>import</strong> org.apache.log4j.helpers.CyclicBuffer;
<a name="25" href="#25">25</a>  <strong>import</strong> org.apache.log4j.helpers.OptionConverter;
<a name="26" href="#26">26</a>  <strong>import</strong> org.apache.log4j.helpers.LogLog;
<a name="27" href="#27">27</a>  <strong>import</strong> org.apache.log4j.spi.LoggingEvent;
<a name="28" href="#28">28</a>  <strong>import</strong> org.apache.log4j.spi.ErrorCode;
<a name="29" href="#29">29</a>  <strong>import</strong> org.apache.log4j.spi.TriggeringEventEvaluator;
<a name="30" href="#30">30</a>  <strong>import</strong> org.apache.log4j.spi.OptionHandler;
<a name="31" href="#31">31</a>  <strong>import</strong> org.w3c.dom.Element;
<a name="32" href="#32">32</a>  
<a name="33" href="#33">33</a>  <strong>import</strong> java.util.Properties;
<a name="34" href="#34">34</a>  <strong>import</strong> java.util.Date;
<a name="35" href="#35">35</a>  
<a name="36" href="#36">36</a>  <strong>import</strong> javax.mail.Session;
<a name="37" href="#37">37</a>  <strong>import</strong> javax.mail.Authenticator;
<a name="38" href="#38">38</a>  <strong>import</strong> javax.mail.PasswordAuthentication;
<a name="39" href="#39">39</a>  <strong>import</strong> javax.mail.Transport;
<a name="40" href="#40">40</a>  <strong>import</strong> javax.mail.Message;
<a name="41" href="#41">41</a>  <strong>import</strong> javax.mail.MessagingException;
<a name="42" href="#42">42</a>  <strong>import</strong> javax.mail.internet.MimeMessage;
<a name="43" href="#43">43</a>  <strong>import</strong> javax.mail.Multipart;
<a name="44" href="#44">44</a>  <strong>import</strong> javax.mail.internet.MimeMultipart;
<a name="45" href="#45">45</a>  <strong>import</strong> javax.mail.internet.MimeBodyPart;
<a name="46" href="#46">46</a>  <strong>import</strong> javax.mail.internet.InternetAddress;
<a name="47" href="#47">47</a>  <strong>import</strong> javax.mail.internet.AddressException;
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>  <em>/**<em>*</em></em>
<a name="50" href="#50">50</a>  <em>   Send an e-mail when a specific logging event occurs, typically on</em>
<a name="51" href="#51">51</a>  <em>   errors or fatal errors.</em>
<a name="52" href="#52">52</a>  
<a name="53" href="#53">53</a>  <em>   &lt;p>The number of logging events delivered in this e-mail depend on</em>
<a name="54" href="#54">54</a>  <em>   the value of &lt;b>BufferSize&lt;/b> option. The</em>
<a name="55" href="#55">55</a>  <em>   &lt;code>SMTPAppender&lt;/code> keeps only the last</em>
<a name="56" href="#56">56</a>  <em>   &lt;code>BufferSize&lt;/code> logging events in its cyclic buffer. This</em>
<a name="57" href="#57">57</a>  <em>   keeps memory requirements at a reasonable level while still</em>
<a name="58" href="#58">58</a>  <em>   delivering useful application context.</em>
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>  <em>   By default, an email message will be sent when an ERROR or higher</em>
<a name="61" href="#61">61</a>  <em>   severity message is appended.  The triggering criteria can be</em>
<a name="62" href="#62">62</a>  <em>   modified by setting the evaluatorClass property with the name</em>
<a name="63" href="#63">63</a>  <em>   of a class implementing TriggeringEventEvaluator, setting the evaluator</em>
<a name="64" href="#64">64</a>  <em>   property with an instance of TriggeringEventEvaluator or</em>
<a name="65" href="#65">65</a>  <em>   nesting a triggeringPolicy element where the specified</em>
<a name="66" href="#66">66</a>  <em>   class implements TriggeringEventEvaluator.</em>
<a name="67" href="#67">67</a>  
<a name="68" href="#68">68</a>  <em>   @author Ceki G&amp;uuml;lc&amp;uuml;</em>
<a name="69" href="#69">69</a>  <em>   @since 1.0 */</em>
<a name="70" href="#70">70</a>  <strong>public</strong> <strong>class</strong> <a href="../../../../org/apache/log4j/net/SMTPAppender.html">SMTPAppender</a> <strong>extends</strong> <a href="../../../../org/apache/log4j/AppenderSkeleton.html">AppenderSkeleton</a>
<a name="71" href="#71">71</a>          implements <a href="../../../../org/apache/log4j/xml/UnrecognizedElementHandler.html">UnrecognizedElementHandler</a> {
<a name="72" href="#72">72</a>    <strong>private</strong> String to;
<a name="73" href="#73">73</a>    <em>/**<em>*</em></em>
<a name="74" href="#74">74</a>  <em>   * Comma separated list of cc recipients.</em>
<a name="75" href="#75">75</a>  <em>   */</em>
<a name="76" href="#76">76</a>    <strong>private</strong> String cc;  
<a name="77" href="#77">77</a>    <em>/**<em>*</em></em>
<a name="78" href="#78">78</a>  <em>   * Comma separated list of bcc recipients.</em>
<a name="79" href="#79">79</a>  <em>   */</em>
<a name="80" href="#80">80</a>    <strong>private</strong> String bcc;  
<a name="81" href="#81">81</a>    <strong>private</strong> String from;
<a name="82" href="#82">82</a>    <strong>private</strong> String subject;
<a name="83" href="#83">83</a>    <strong>private</strong> String smtpHost;
<a name="84" href="#84">84</a>    <strong>private</strong> String smtpUsername;
<a name="85" href="#85">85</a>    <strong>private</strong> String smtpPassword;
<a name="86" href="#86">86</a>    <strong>private</strong> <strong>boolean</strong> smtpDebug = false;
<a name="87" href="#87">87</a>    <strong>private</strong> <strong>int</strong> bufferSize = 512;
<a name="88" href="#88">88</a>    <strong>private</strong> <strong>boolean</strong> locationInfo = false;
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>    <strong>protected</strong> <a href="../../../../org/apache/log4j/helpers/CyclicBuffer.html">CyclicBuffer</a> cb = <strong>new</strong> <a href="../../../../org/apache/log4j/helpers/CyclicBuffer.html">CyclicBuffer</a>(bufferSize);
<a name="91" href="#91">91</a>    <strong>protected</strong> Message msg;
<a name="92" href="#92">92</a>  
<a name="93" href="#93">93</a>    <strong>protected</strong> <a href="../../../../org/apache/log4j/spi/TriggeringEventEvaluator.html">TriggeringEventEvaluator</a> evaluator;
<a name="94" href="#94">94</a>  
<a name="95" href="#95">95</a>  
<a name="96" href="#96">96</a>  
<a name="97" href="#97">97</a>    <em>/**<em>*</em></em>
<a name="98" href="#98">98</a>  <em>     The default constructor will instantiate the appender with a</em>
<a name="99" href="#99">99</a>  <em>     {@link TriggeringEventEvaluator} that will trigger on events with</em>
<a name="100" href="#100">100</a> <em>     level ERROR or higher.*/</em>
<a name="101" href="#101">101</a>   <strong>public</strong>
<a name="102" href="#102">102</a>   <a href="../../../../org/apache/log4j/net/SMTPAppender.html">SMTPAppender</a>() {
<a name="103" href="#103">103</a>     <strong>this</strong>(<strong>new</strong> DefaultEvaluator());
<a name="104" href="#104">104</a>   }
<a name="105" href="#105">105</a> 
<a name="106" href="#106">106</a> 
<a name="107" href="#107">107</a>   <em>/**<em>*</em></em>
<a name="108" href="#108">108</a> <em>     Use &lt;code>evaluator&lt;/code> passed as parameter as the {@link</em>
<a name="109" href="#109">109</a> <em>     TriggeringEventEvaluator} for this SMTPAppender.  */</em>
<a name="110" href="#110">110</a>   <strong>public</strong>
<a name="111" href="#111">111</a>   <a href="../../../../org/apache/log4j/net/SMTPAppender.html">SMTPAppender</a>(<a href="../../../../org/apache/log4j/spi/TriggeringEventEvaluator.html">TriggeringEventEvaluator</a> evaluator) {
<a name="112" href="#112">112</a>     <strong>this</strong>.evaluator = evaluator;
<a name="113" href="#113">113</a>   }
<a name="114" href="#114">114</a> 
<a name="115" href="#115">115</a> 
<a name="116" href="#116">116</a>   <em>/**<em>*</em></em>
<a name="117" href="#117">117</a> <em>     Activate the specified options, such as the smtp host, the</em>
<a name="118" href="#118">118</a> <em>     recipient, from, etc. */</em>
<a name="119" href="#119">119</a>   <strong>public</strong>
<a name="120" href="#120">120</a>   <strong>void</strong> activateOptions() {
<a name="121" href="#121">121</a>     Session session = createSession();
<a name="122" href="#122">122</a>     msg = <strong>new</strong> MimeMessage(session);
<a name="123" href="#123">123</a> 
<a name="124" href="#124">124</a>      <strong>try</strong> {
<a name="125" href="#125">125</a>         addressMessage(msg);
<a name="126" href="#126">126</a>         <strong>if</strong>(subject != <strong>null</strong>) {
<a name="127" href="#127">127</a> 	       msg.setSubject(subject);
<a name="128" href="#128">128</a> 	    }
<a name="129" href="#129">129</a>      } <strong>catch</strong>(MessagingException e) {
<a name="130" href="#130">130</a>        LogLog.error(<span class="string">"Could not activate SMTPAppender options."</span>, e );
<a name="131" href="#131">131</a>      }
<a name="132" href="#132">132</a> 
<a name="133" href="#133">133</a>      <strong>if</strong> (evaluator instanceof OptionHandler) {
<a name="134" href="#134">134</a>          ((<a href="../../../../org/apache/log4j/spi/OptionHandler.html">OptionHandler</a>) evaluator).activateOptions();
<a name="135" href="#135">135</a>      }
<a name="136" href="#136">136</a>   }
<a name="137" href="#137">137</a>   
<a name="138" href="#138">138</a>   <em>/**<em>*</em></em>
<a name="139" href="#139">139</a> <em>   *   Address message.</em>
<a name="140" href="#140">140</a> <em>   *   @param msg message, may not be null.</em>
<a name="141" href="#141">141</a> <em>   *   @throws MessagingException thrown if error addressing message. </em>
<a name="142" href="#142">142</a> <em>   */</em>
<a name="143" href="#143">143</a>   <strong>protected</strong> <strong>void</strong> addressMessage(<strong>final</strong> Message msg) throws MessagingException {
<a name="144" href="#144">144</a>        <strong>if</strong> (from != <strong>null</strong>) {
<a name="145" href="#145">145</a> 	 		msg.setFrom(getAddress(from));
<a name="146" href="#146">146</a>        } <strong>else</strong> {
<a name="147" href="#147">147</a> 	 		msg.setFrom();
<a name="148" href="#148">148</a> 	   }
<a name="149" href="#149">149</a> 
<a name="150" href="#150">150</a>        <strong>if</strong> (to != <strong>null</strong> &amp;&amp; to.length() > 0) {
<a name="151" href="#151">151</a>              msg.setRecipients(Message.RecipientType.TO, parseAddress(to));
<a name="152" href="#152">152</a>        }
<a name="153" href="#153">153</a> 
<a name="154" href="#154">154</a>       <em class="comment">//Add CC receipients if defined.</em>
<a name="155" href="#155">155</a> 	  <strong>if</strong> (cc != <strong>null</strong> &amp;&amp; cc.length() > 0) {
<a name="156" href="#156">156</a> 		msg.setRecipients(Message.RecipientType.CC, parseAddress(cc));
<a name="157" href="#157">157</a> 	  }
<a name="158" href="#158">158</a> 
<a name="159" href="#159">159</a>       <em class="comment">//Add BCC receipients if defined.</em>
<a name="160" href="#160">160</a> 	  <strong>if</strong> (bcc != <strong>null</strong> &amp;&amp; bcc.length() > 0) {
<a name="161" href="#161">161</a> 		msg.setRecipients(Message.RecipientType.BCC, parseAddress(bcc));
<a name="162" href="#162">162</a> 	  }
<a name="163" href="#163">163</a>   }
<a name="164" href="#164">164</a>   
<a name="165" href="#165">165</a>   <em>/**<em>*</em></em>
<a name="166" href="#166">166</a> <em>   *  Create mail session.</em>
<a name="167" href="#167">167</a> <em>   *  @return mail session, may not be null.</em>
<a name="168" href="#168">168</a> <em>   */</em>
<a name="169" href="#169">169</a>   <strong>protected</strong> Session createSession() {
<a name="170" href="#170">170</a>     Properties props = <strong>null</strong>;
<a name="171" href="#171">171</a>     <strong>try</strong> {
<a name="172" href="#172">172</a>         props = <strong>new</strong> Properties (System.getProperties());
<a name="173" href="#173">173</a>     } <strong>catch</strong>(SecurityException ex) {
<a name="174" href="#174">174</a>         props = <strong>new</strong> Properties();
<a name="175" href="#175">175</a>     }
<a name="176" href="#176">176</a>     <strong>if</strong> (smtpHost != <strong>null</strong>) {
<a name="177" href="#177">177</a>       props.put(<span class="string">"mail.smtp.host"</span>, smtpHost);
<a name="178" href="#178">178</a>     }
<a name="179" href="#179">179</a>     
<a name="180" href="#180">180</a>     Authenticator auth = <strong>null</strong>;
<a name="181" href="#181">181</a>     <strong>if</strong>(smtpPassword != <strong>null</strong> &amp;&amp; smtpUsername != <strong>null</strong>) {
<a name="182" href="#182">182</a>       props.put(<span class="string">"mail.smtp.auth"</span>, <span class="string">"true"</span>);
<a name="183" href="#183">183</a>       auth = <strong>new</strong> Authenticator() {
<a name="184" href="#184">184</a>         <strong>protected</strong> PasswordAuthentication getPasswordAuthentication() {
<a name="185" href="#185">185</a>           <strong>return</strong> <strong>new</strong> PasswordAuthentication(smtpUsername, smtpPassword);
<a name="186" href="#186">186</a>         }
<a name="187" href="#187">187</a>       };
<a name="188" href="#188">188</a>     }
<a name="189" href="#189">189</a>     Session session = Session.getInstance(props, auth);
<a name="190" href="#190">190</a>     <strong>if</strong> (smtpDebug) {
<a name="191" href="#191">191</a>         session.setDebug(smtpDebug);
<a name="192" href="#192">192</a>     }
<a name="193" href="#193">193</a>     <strong>return</strong> session;
<a name="194" href="#194">194</a>   }
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>   <em>/**<em>*</em></em>
<a name="197" href="#197">197</a> <em>     Perform SMTPAppender specific appending actions, mainly adding</em>
<a name="198" href="#198">198</a> <em>     the event to a cyclic buffer and checking if the event triggers</em>
<a name="199" href="#199">199</a> <em>     an e-mail to be sent. */</em>
<a name="200" href="#200">200</a>   <strong>public</strong>
<a name="201" href="#201">201</a>   <strong>void</strong> append(<a href="../../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> event) {
<a name="202" href="#202">202</a> 
<a name="203" href="#203">203</a>     <strong>if</strong>(!checkEntryConditions()) {
<a name="204" href="#204">204</a>       <strong>return</strong>;
<a name="205" href="#205">205</a>     }
<a name="206" href="#206">206</a> 
<a name="207" href="#207">207</a>     event.getThreadName();
<a name="208" href="#208">208</a>     event.getNDC();
<a name="209" href="#209">209</a>     event.getMDCCopy();
<a name="210" href="#210">210</a>     <strong>if</strong>(locationInfo) {
<a name="211" href="#211">211</a>       event.getLocationInformation();
<a name="212" href="#212">212</a>     }
<a name="213" href="#213">213</a>     cb.add(event);
<a name="214" href="#214">214</a>     <strong>if</strong>(evaluator.isTriggeringEvent(event)) {
<a name="215" href="#215">215</a>       sendBuffer();
<a name="216" href="#216">216</a>     }
<a name="217" href="#217">217</a>   }
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>  <em>/**<em>*</em></em>
<a name="220" href="#220">220</a> <em>     This method determines if there is a sense in attempting to append.</em>
<a name="221" href="#221">221</a> 
<a name="222" href="#222">222</a> <em>     &lt;p>It checks whether there is a set output target and also if</em>
<a name="223" href="#223">223</a> <em>     there is a set layout. If these checks fail, then the boolean</em>
<a name="224" href="#224">224</a> <em>     value &lt;code>false&lt;/code> is returned. */</em>
<a name="225" href="#225">225</a>   <strong>protected</strong>
<a name="226" href="#226">226</a>   <strong>boolean</strong> checkEntryConditions() {
<a name="227" href="#227">227</a>     <strong>if</strong>(<strong>this</strong>.msg == <strong>null</strong>) {
<a name="228" href="#228">228</a>       errorHandler.error(<span class="string">"Message object not configured."</span>);
<a name="229" href="#229">229</a>       <strong>return</strong> false;
<a name="230" href="#230">230</a>     }
<a name="231" href="#231">231</a> 
<a name="232" href="#232">232</a>     <strong>if</strong>(<strong>this</strong>.evaluator == <strong>null</strong>) {
<a name="233" href="#233">233</a>       errorHandler.error(<span class="string">"No TriggeringEventEvaluator is set for appender ["</span>+
<a name="234" href="#234">234</a> 			 name+<span class="string">"]."</span>);
<a name="235" href="#235">235</a>       <strong>return</strong> false;
<a name="236" href="#236">236</a>     }
<a name="237" href="#237">237</a> 
<a name="238" href="#238">238</a> 
<a name="239" href="#239">239</a>     <strong>if</strong>(<strong>this</strong>.layout == <strong>null</strong>) {
<a name="240" href="#240">240</a>       errorHandler.error(<span class="string">"No layout set for appender named ["</span>+name+<span class="string">"]."</span>);
<a name="241" href="#241">241</a>       <strong>return</strong> false;
<a name="242" href="#242">242</a>     }
<a name="243" href="#243">243</a>     <strong>return</strong> <strong>true</strong>;
<a name="244" href="#244">244</a>   }
<a name="245" href="#245">245</a> 
<a name="246" href="#246">246</a> 
<a name="247" href="#247">247</a>   <strong>synchronized</strong>
<a name="248" href="#248">248</a>   <strong>public</strong>
<a name="249" href="#249">249</a>   <strong>void</strong> close() {
<a name="250" href="#250">250</a>     <strong>this</strong>.closed = <strong>true</strong>;
<a name="251" href="#251">251</a>   }
<a name="252" href="#252">252</a> 
<a name="253" href="#253">253</a>   InternetAddress getAddress(String addressStr) {
<a name="254" href="#254">254</a>     <strong>try</strong> {
<a name="255" href="#255">255</a>       <strong>return</strong> <strong>new</strong> InternetAddress(addressStr);
<a name="256" href="#256">256</a>     } <strong>catch</strong>(AddressException e) {
<a name="257" href="#257">257</a>       errorHandler.error(<span class="string">"Could not parse address ["</span>+addressStr+<span class="string">"]."</span>, e,
<a name="258" href="#258">258</a> 			 ErrorCode.ADDRESS_PARSE_FAILURE);
<a name="259" href="#259">259</a>       <strong>return</strong> <strong>null</strong>;
<a name="260" href="#260">260</a>     }
<a name="261" href="#261">261</a>   }
<a name="262" href="#262">262</a> 
<a name="263" href="#263">263</a>   InternetAddress[] parseAddress(String addressStr) {
<a name="264" href="#264">264</a>     <strong>try</strong> {
<a name="265" href="#265">265</a>       <strong>return</strong> InternetAddress.parse(addressStr, <strong>true</strong>);
<a name="266" href="#266">266</a>     } <strong>catch</strong>(AddressException e) {
<a name="267" href="#267">267</a>       errorHandler.error(<span class="string">"Could not parse address ["</span>+addressStr+<span class="string">"]."</span>, e,
<a name="268" href="#268">268</a> 			 ErrorCode.ADDRESS_PARSE_FAILURE);
<a name="269" href="#269">269</a>       <strong>return</strong> <strong>null</strong>;
<a name="270" href="#270">270</a>     }
<a name="271" href="#271">271</a>   }
<a name="272" href="#272">272</a> 
<a name="273" href="#273">273</a>   <em>/**<em>*</em></em>
<a name="274" href="#274">274</a> <em>     Returns value of the &lt;b>To&lt;/b> option.</em>
<a name="275" href="#275">275</a> <em>   */</em>
<a name="276" href="#276">276</a>   <strong>public</strong>
<a name="277" href="#277">277</a>   String getTo() {
<a name="278" href="#278">278</a>     <strong>return</strong> to;
<a name="279" href="#279">279</a>   }
<a name="280" href="#280">280</a> 
<a name="281" href="#281">281</a> 
<a name="282" href="#282">282</a>   <em>/**<em>*</em></em>
<a name="283" href="#283">283</a> <em>     The &lt;code>SMTPAppender&lt;/code> requires a {@link</em>
<a name="284" href="#284">284</a> <em>     org.apache.log4j.Layout layout}.  */</em>
<a name="285" href="#285">285</a>   <strong>public</strong>
<a name="286" href="#286">286</a>   <strong>boolean</strong> requiresLayout() {
<a name="287" href="#287">287</a>     <strong>return</strong> <strong>true</strong>;
<a name="288" href="#288">288</a>   }
<a name="289" href="#289">289</a> 
<a name="290" href="#290">290</a>   <em>/**<em>*</em></em>
<a name="291" href="#291">291</a> <em>     Send the contents of the cyclic buffer as an e-mail message.</em>
<a name="292" href="#292">292</a> <em>   */</em>
<a name="293" href="#293">293</a>   <strong>protected</strong>
<a name="294" href="#294">294</a>   <strong>void</strong> sendBuffer() {
<a name="295" href="#295">295</a> 
<a name="296" href="#296">296</a>     <em class="comment">// Note: this code already owns the monitor for this</em>
<a name="297" href="#297">297</a>     <em class="comment">// appender. This frees us from needing to synchronize on 'cb'.</em>
<a name="298" href="#298">298</a>     <strong>try</strong> {
<a name="299" href="#299">299</a>       MimeBodyPart part = <strong>new</strong> MimeBodyPart();
<a name="300" href="#300">300</a> 
<a name="301" href="#301">301</a>       StringBuffer sbuf = <strong>new</strong> StringBuffer();
<a name="302" href="#302">302</a>       String t = layout.getHeader();
<a name="303" href="#303">303</a>       <strong>if</strong>(t != <strong>null</strong>)
<a name="304" href="#304">304</a> 	sbuf.append(t);
<a name="305" href="#305">305</a>       <strong>int</strong> len =  cb.length();
<a name="306" href="#306">306</a>       <strong>for</strong>(<strong>int</strong> i = 0; i &lt; len; i++) {
<a name="307" href="#307">307</a> 	<em class="comment">//sbuf.append(MimeUtility.encodeText(layout.format(cb.get())));</em>
<a name="308" href="#308">308</a> 	LoggingEvent event = cb.get();
<a name="309" href="#309">309</a> 	sbuf.append(layout.format(event));
<a name="310" href="#310">310</a> 	<strong>if</strong>(layout.ignoresThrowable()) {
<a name="311" href="#311">311</a> 	  String[] s = event.getThrowableStrRep();
<a name="312" href="#312">312</a> 	  <strong>if</strong> (s != <strong>null</strong>) {
<a name="313" href="#313">313</a> 	    <strong>for</strong>(<strong>int</strong> j = 0; j &lt; s.length; j++) {
<a name="314" href="#314">314</a> 	      sbuf.append(s[j]);
<a name="315" href="#315">315</a> 	      sbuf.append(Layout.LINE_SEP);
<a name="316" href="#316">316</a> 	    }
<a name="317" href="#317">317</a> 	  }
<a name="318" href="#318">318</a> 	}
<a name="319" href="#319">319</a>       }
<a name="320" href="#320">320</a>       t = layout.getFooter();
<a name="321" href="#321">321</a>       <strong>if</strong>(t != <strong>null</strong>)
<a name="322" href="#322">322</a> 	sbuf.append(t);
<a name="323" href="#323">323</a>       part.setContent(sbuf.toString(), layout.getContentType());
<a name="324" href="#324">324</a> 
<a name="325" href="#325">325</a>       Multipart mp = <strong>new</strong> MimeMultipart();
<a name="326" href="#326">326</a>       mp.addBodyPart(part);
<a name="327" href="#327">327</a>       msg.setContent(mp);
<a name="328" href="#328">328</a> 
<a name="329" href="#329">329</a>       msg.setSentDate(<strong>new</strong> Date());
<a name="330" href="#330">330</a>       Transport.send(msg);
<a name="331" href="#331">331</a>     } <strong>catch</strong>(Exception e) {
<a name="332" href="#332">332</a>       LogLog.error(<span class="string">"Error occured while sending e-mail notification."</span>, e);
<a name="333" href="#333">333</a>     }
<a name="334" href="#334">334</a>   }
<a name="335" href="#335">335</a> 
<a name="336" href="#336">336</a> 
<a name="337" href="#337">337</a> 
<a name="338" href="#338">338</a>   <em>/**<em>*</em></em>
<a name="339" href="#339">339</a> <em>     Returns value of the &lt;b>EvaluatorClass&lt;/b> option.</em>
<a name="340" href="#340">340</a> <em>   */</em>
<a name="341" href="#341">341</a>   <strong>public</strong>
<a name="342" href="#342">342</a>   String getEvaluatorClass() {
<a name="343" href="#343">343</a>     <strong>return</strong> evaluator == <strong>null</strong> ? <strong>null</strong> : evaluator.getClass().getName();
<a name="344" href="#344">344</a>   }
<a name="345" href="#345">345</a> 
<a name="346" href="#346">346</a>   <em>/**<em>*</em></em>
<a name="347" href="#347">347</a> <em>     Returns value of the &lt;b>From&lt;/b> option.</em>
<a name="348" href="#348">348</a> <em>   */</em>
<a name="349" href="#349">349</a>   <strong>public</strong>
<a name="350" href="#350">350</a>   String getFrom() {
<a name="351" href="#351">351</a>     <strong>return</strong> from;
<a name="352" href="#352">352</a>   }
<a name="353" href="#353">353</a> 
<a name="354" href="#354">354</a>   <em>/**<em>*</em></em>
<a name="355" href="#355">355</a> <em>     Returns value of the &lt;b>Subject&lt;/b> option.</em>
<a name="356" href="#356">356</a> <em>   */</em>
<a name="357" href="#357">357</a>   <strong>public</strong>
<a name="358" href="#358">358</a>   String getSubject() {
<a name="359" href="#359">359</a>     <strong>return</strong> subject;
<a name="360" href="#360">360</a>   }
<a name="361" href="#361">361</a> 
<a name="362" href="#362">362</a>   <em>/**<em>*</em></em>
<a name="363" href="#363">363</a> <em>     The &lt;b>From&lt;/b> option takes a string value which should be a</em>
<a name="364" href="#364">364</a> <em>     e-mail address of the sender.</em>
<a name="365" href="#365">365</a> <em>   */</em>
<a name="366" href="#366">366</a>   <strong>public</strong>
<a name="367" href="#367">367</a>   <strong>void</strong> setFrom(String from) {
<a name="368" href="#368">368</a>     <strong>this</strong>.from = from;
<a name="369" href="#369">369</a>   }
<a name="370" href="#370">370</a> 
<a name="371" href="#371">371</a>   <em>/**<em>*</em></em>
<a name="372" href="#372">372</a> <em>     The &lt;b>Subject&lt;/b> option takes a string value which should be a</em>
<a name="373" href="#373">373</a> <em>     the subject of the e-mail message.</em>
<a name="374" href="#374">374</a> <em>   */</em>
<a name="375" href="#375">375</a>   <strong>public</strong>
<a name="376" href="#376">376</a>   <strong>void</strong> setSubject(String subject) {
<a name="377" href="#377">377</a>     <strong>this</strong>.subject = subject;
<a name="378" href="#378">378</a>   }
<a name="379" href="#379">379</a> 
<a name="380" href="#380">380</a> 
<a name="381" href="#381">381</a>   <em>/**<em>*</em></em>
<a name="382" href="#382">382</a> <em>     The &lt;b>BufferSize&lt;/b> option takes a positive integer</em>
<a name="383" href="#383">383</a> <em>     representing the maximum number of logging events to collect in a</em>
<a name="384" href="#384">384</a> <em>     cyclic buffer. When the &lt;code>BufferSize&lt;/code> is reached,</em>
<a name="385" href="#385">385</a> <em>     oldest events are deleted as new events are added to the</em>
<a name="386" href="#386">386</a> <em>     buffer. By default the size of the cyclic buffer is 512 events.</em>
<a name="387" href="#387">387</a> <em>   */</em>
<a name="388" href="#388">388</a>   <strong>public</strong>
<a name="389" href="#389">389</a>   <strong>void</strong> setBufferSize(<strong>int</strong> bufferSize) {
<a name="390" href="#390">390</a>     <strong>this</strong>.bufferSize = bufferSize;
<a name="391" href="#391">391</a>     cb.resize(bufferSize);
<a name="392" href="#392">392</a>   }
<a name="393" href="#393">393</a> 
<a name="394" href="#394">394</a>   <em>/**<em>*</em></em>
<a name="395" href="#395">395</a> <em>     The &lt;b>SMTPHost&lt;/b> option takes a string value which should be a</em>
<a name="396" href="#396">396</a> <em>     the host name of the SMTP server that will send the e-mail message.</em>
<a name="397" href="#397">397</a> <em>   */</em>
<a name="398" href="#398">398</a>   <strong>public</strong>
<a name="399" href="#399">399</a>   <strong>void</strong> setSMTPHost(String smtpHost) {
<a name="400" href="#400">400</a>     <strong>this</strong>.smtpHost = smtpHost;
<a name="401" href="#401">401</a>   }
<a name="402" href="#402">402</a> 
<a name="403" href="#403">403</a>   <em>/**<em>*</em></em>
<a name="404" href="#404">404</a> <em>     Returns value of the &lt;b>SMTPHost&lt;/b> option.</em>
<a name="405" href="#405">405</a> <em>   */</em>
<a name="406" href="#406">406</a>   <strong>public</strong>
<a name="407" href="#407">407</a>   String getSMTPHost() {
<a name="408" href="#408">408</a>     <strong>return</strong> smtpHost;
<a name="409" href="#409">409</a>   }
<a name="410" href="#410">410</a> 
<a name="411" href="#411">411</a>   <em>/**<em>*</em></em>
<a name="412" href="#412">412</a> <em>     The &lt;b>To&lt;/b> option takes a string value which should be a</em>
<a name="413" href="#413">413</a> <em>     comma separated list of e-mail address of the recipients.</em>
<a name="414" href="#414">414</a> <em>   */</em>
<a name="415" href="#415">415</a>   <strong>public</strong>
<a name="416" href="#416">416</a>   <strong>void</strong> setTo(String to) {
<a name="417" href="#417">417</a>     <strong>this</strong>.to = to;
<a name="418" href="#418">418</a>   }
<a name="419" href="#419">419</a> 
<a name="420" href="#420">420</a> 
<a name="421" href="#421">421</a> 
<a name="422" href="#422">422</a>   <em>/**<em>*</em></em>
<a name="423" href="#423">423</a> <em>     Returns value of the &lt;b>BufferSize&lt;/b> option.</em>
<a name="424" href="#424">424</a> <em>   */</em>
<a name="425" href="#425">425</a>   <strong>public</strong>
<a name="426" href="#426">426</a>   <strong>int</strong> getBufferSize() {
<a name="427" href="#427">427</a>     <strong>return</strong> bufferSize;
<a name="428" href="#428">428</a>   }
<a name="429" href="#429">429</a> 
<a name="430" href="#430">430</a>   <em>/**<em>*</em></em>
<a name="431" href="#431">431</a> <em>     The &lt;b>EvaluatorClass&lt;/b> option takes a string value</em>
<a name="432" href="#432">432</a> <em>     representing the name of the class implementing the {@link</em>
<a name="433" href="#433">433</a> <em>     TriggeringEventEvaluator} interface. A corresponding object will</em>
<a name="434" href="#434">434</a> <em>     be instantiated and assigned as the triggering event evaluator</em>
<a name="435" href="#435">435</a> <em>     for the SMTPAppender.</em>
<a name="436" href="#436">436</a> <em>   */</em>
<a name="437" href="#437">437</a>   <strong>public</strong>
<a name="438" href="#438">438</a>   <strong>void</strong> setEvaluatorClass(String value) {
<a name="439" href="#439">439</a>       evaluator = (TriggeringEventEvaluator)
<a name="440" href="#440">440</a>                 OptionConverter.instantiateByClassName(value,
<a name="441" href="#441">441</a> 					   TriggeringEventEvaluator.<strong>class</strong>,
<a name="442" href="#442">442</a> 						       evaluator);
<a name="443" href="#443">443</a>   }
<a name="444" href="#444">444</a> 
<a name="445" href="#445">445</a> 
<a name="446" href="#446">446</a>   <em>/**<em>*</em></em>
<a name="447" href="#447">447</a> <em>     The &lt;b>LocationInfo&lt;/b> option takes a boolean value. By</em>
<a name="448" href="#448">448</a> <em>     default, it is set to false which means there will be no effort</em>
<a name="449" href="#449">449</a> <em>     to extract the location information related to the event. As a</em>
<a name="450" href="#450">450</a> <em>     result, the layout that formats the events as they are sent out</em>
<a name="451" href="#451">451</a> <em>     in an e-mail is likely to place the wrong location information</em>
<a name="452" href="#452">452</a> <em>     (if present in the format).</em>
<a name="453" href="#453">453</a> 
<a name="454" href="#454">454</a> <em>     &lt;p>Location information extraction is comparatively very slow and</em>
<a name="455" href="#455">455</a> <em>     should be avoided unless performance is not a concern.</em>
<a name="456" href="#456">456</a> <em>   */</em>
<a name="457" href="#457">457</a>   <strong>public</strong>
<a name="458" href="#458">458</a>   <strong>void</strong> setLocationInfo(<strong>boolean</strong> locationInfo) {
<a name="459" href="#459">459</a>     <strong>this</strong>.locationInfo = locationInfo;
<a name="460" href="#460">460</a>   }
<a name="461" href="#461">461</a> 
<a name="462" href="#462">462</a>   <em>/**<em>*</em></em>
<a name="463" href="#463">463</a> <em>     Returns value of the &lt;b>LocationInfo&lt;/b> option.</em>
<a name="464" href="#464">464</a> <em>   */</em>
<a name="465" href="#465">465</a>   <strong>public</strong>
<a name="466" href="#466">466</a>   <strong>boolean</strong> getLocationInfo() {
<a name="467" href="#467">467</a>     <strong>return</strong> locationInfo;
<a name="468" href="#468">468</a>   }
<a name="469" href="#469">469</a>   
<a name="470" href="#470">470</a>    <em>/**<em>*</em></em>
<a name="471" href="#471">471</a> <em>      Set the cc recipient addresses.</em>
<a name="472" href="#472">472</a> <em>      @param addresses recipient addresses as comma separated string, may be null.</em>
<a name="473" href="#473">473</a> <em>    */</em>
<a name="474" href="#474">474</a>    <strong>public</strong> <strong>void</strong> setCc(<strong>final</strong> String addresses) {
<a name="475" href="#475">475</a>      <strong>this</strong>.cc = addresses;
<a name="476" href="#476">476</a>    }
<a name="477" href="#477">477</a> 
<a name="478" href="#478">478</a>    <em>/**<em>*</em></em>
<a name="479" href="#479">479</a> <em>      Get the cc recipient addresses.</em>
<a name="480" href="#480">480</a> <em>      @return recipient addresses as comma separated string, may be null.</em>
<a name="481" href="#481">481</a> <em>    */</em>
<a name="482" href="#482">482</a>     <strong>public</strong> String getCc() {
<a name="483" href="#483">483</a>      <strong>return</strong> cc;
<a name="484" href="#484">484</a>     }
<a name="485" href="#485">485</a> 
<a name="486" href="#486">486</a>    <em>/**<em>*</em></em>
<a name="487" href="#487">487</a> <em>      Set the bcc recipient addresses.</em>
<a name="488" href="#488">488</a> <em>      @param addresses recipient addresses as comma separated string, may be null.</em>
<a name="489" href="#489">489</a> <em>    */</em>
<a name="490" href="#490">490</a>    <strong>public</strong> <strong>void</strong> setBcc(<strong>final</strong> String addresses) {
<a name="491" href="#491">491</a>      <strong>this</strong>.bcc = addresses;
<a name="492" href="#492">492</a>    }
<a name="493" href="#493">493</a> 
<a name="494" href="#494">494</a>    <em>/**<em>*</em></em>
<a name="495" href="#495">495</a> <em>      Get the bcc recipient addresses.</em>
<a name="496" href="#496">496</a> <em>      @return recipient addresses as comma separated string, may be null.</em>
<a name="497" href="#497">497</a> <em>    */</em>
<a name="498" href="#498">498</a>     <strong>public</strong> String getBcc() {
<a name="499" href="#499">499</a>      <strong>return</strong> bcc;
<a name="500" href="#500">500</a>     }
<a name="501" href="#501">501</a> 
<a name="502" href="#502">502</a>   <em>/**<em>*</em></em>
<a name="503" href="#503">503</a> <em>   * The &lt;b>SmtpPassword&lt;/b> option takes a string value which should be the password required to authenticate against</em>
<a name="504" href="#504">504</a> <em>   * the mail server.</em>
<a name="505" href="#505">505</a> <em>   * @param password password, may be null.</em>
<a name="506" href="#506">506</a> <em>   */</em>
<a name="507" href="#507">507</a>   <strong>public</strong> <strong>void</strong> setSMTPPassword(<strong>final</strong> String password) {
<a name="508" href="#508">508</a>     <strong>this</strong>.smtpPassword = password;
<a name="509" href="#509">509</a>   }
<a name="510" href="#510">510</a>  
<a name="511" href="#511">511</a>   <em>/**<em>*</em></em>
<a name="512" href="#512">512</a> <em>   * The &lt;b>SmtpUsername&lt;/b> option takes a string value which should be the username required to authenticate against</em>
<a name="513" href="#513">513</a> <em>   * the mail server.</em>
<a name="514" href="#514">514</a> <em>   * @param username user name, may be null.</em>
<a name="515" href="#515">515</a> <em>   */</em>
<a name="516" href="#516">516</a>   <strong>public</strong> <strong>void</strong> setSMTPUsername(<strong>final</strong> String username) {
<a name="517" href="#517">517</a>     <strong>this</strong>.smtpUsername = username;
<a name="518" href="#518">518</a>   }
<a name="519" href="#519">519</a> 
<a name="520" href="#520">520</a>   <em>/**<em>*</em></em>
<a name="521" href="#521">521</a> <em>   * Setting the &lt;b>SmtpDebug&lt;/b> option to true will cause the mail session to log its server interaction to stdout.</em>
<a name="522" href="#522">522</a> <em>   * This can be useful when debuging the appender but should not be used during production because username and</em>
<a name="523" href="#523">523</a> <em>   * password information is included in the output.</em>
<a name="524" href="#524">524</a> <em>   * @param debug debug flag.</em>
<a name="525" href="#525">525</a> <em>   */</em>
<a name="526" href="#526">526</a>   <strong>public</strong> <strong>void</strong> setSMTPDebug(<strong>final</strong> <strong>boolean</strong> debug) {
<a name="527" href="#527">527</a>     <strong>this</strong>.smtpDebug = debug;
<a name="528" href="#528">528</a>   }
<a name="529" href="#529">529</a>   
<a name="530" href="#530">530</a>   <em>/**<em>*</em></em>
<a name="531" href="#531">531</a> <em>   * Get SMTP password.</em>
<a name="532" href="#532">532</a> <em>   * @return SMTP password, may be null.</em>
<a name="533" href="#533">533</a> <em>   */</em>
<a name="534" href="#534">534</a>   <strong>public</strong> String getSMTPPassword() {
<a name="535" href="#535">535</a>     <strong>return</strong> smtpPassword;
<a name="536" href="#536">536</a>   }
<a name="537" href="#537">537</a>  
<a name="538" href="#538">538</a>   <em>/**<em>*</em></em>
<a name="539" href="#539">539</a> <em>   * Get SMTP user name.</em>
<a name="540" href="#540">540</a> <em>   * @return SMTP user name, may be null.</em>
<a name="541" href="#541">541</a> <em>   */</em>
<a name="542" href="#542">542</a>   <strong>public</strong> String getSMTPUsername() {
<a name="543" href="#543">543</a>     <strong>return</strong> smtpUsername;
<a name="544" href="#544">544</a>   }
<a name="545" href="#545">545</a> 
<a name="546" href="#546">546</a>   <em>/**<em>*</em></em>
<a name="547" href="#547">547</a> <em>   * Get SMTP debug.</em>
<a name="548" href="#548">548</a> <em>   * @return SMTP debug flag.</em>
<a name="549" href="#549">549</a> <em>   */</em>
<a name="550" href="#550">550</a>   <strong>public</strong> <strong>boolean</strong> getSMTPDebug() {
<a name="551" href="#551">551</a>     <strong>return</strong> smtpDebug;
<a name="552" href="#552">552</a>   }
<a name="553" href="#553">553</a> 
<a name="554" href="#554">554</a>     <em>/**<em>*</em></em>
<a name="555" href="#555">555</a> <em>     * Sets triggering evaluator.</em>
<a name="556" href="#556">556</a> <em>     * @param trigger triggering event evaluator.</em>
<a name="557" href="#557">557</a> <em>     * @since 1.2.15</em>
<a name="558" href="#558">558</a> <em>     */</em>
<a name="559" href="#559">559</a>   <strong>public</strong> <strong>final</strong> <strong>void</strong> setEvaluator(<strong>final</strong> <a href="../../../../org/apache/log4j/spi/TriggeringEventEvaluator.html">TriggeringEventEvaluator</a> trigger) {
<a name="560" href="#560">560</a>       <strong>if</strong> (trigger == <strong>null</strong>) {
<a name="561" href="#561">561</a>           <strong>throw</strong> <strong>new</strong> NullPointerException(<span class="string">"trigger"</span>);
<a name="562" href="#562">562</a>       }
<a name="563" href="#563">563</a>       <strong>this</strong>.evaluator = trigger;
<a name="564" href="#564">564</a>   }
<a name="565" href="#565">565</a> 
<a name="566" href="#566">566</a>     <em>/**<em>*</em></em>
<a name="567" href="#567">567</a> <em>     * Get triggering evaluator.</em>
<a name="568" href="#568">568</a> <em>     * @return triggering event evaluator.</em>
<a name="569" href="#569">569</a> <em>     * @since 1.2.15</em>
<a name="570" href="#570">570</a> <em>     */</em>
<a name="571" href="#571">571</a>   <strong>public</strong> <strong>final</strong> <a href="../../../../org/apache/log4j/spi/TriggeringEventEvaluator.html">TriggeringEventEvaluator</a> getEvaluator() {
<a name="572" href="#572">572</a>       <strong>return</strong> evaluator;
<a name="573" href="#573">573</a>   }
<a name="574" href="#574">574</a> 
<a name="575" href="#575">575</a>   <em>/**<em>* {@inheritDoc} */</em></em>
<a name="576" href="#576">576</a>   <strong>public</strong> <strong>boolean</strong> parseUnrecognizedElement(<strong>final</strong> Element element,
<a name="577" href="#577">577</a>                                           <strong>final</strong> Properties props) throws Exception {
<a name="578" href="#578">578</a>       <strong>if</strong> (<span class="string">"triggeringPolicy"</span>.equals(element.getNodeName())) {
<a name="579" href="#579">579</a>           Object triggerPolicy =
<a name="580" href="#580">580</a>                   org.apache.log4j.xml.DOMConfigurator.parseElement(
<a name="581" href="#581">581</a>                           element, props, TriggeringEventEvaluator.<strong>class</strong>);
<a name="582" href="#582">582</a>           <strong>if</strong> (triggerPolicy instanceof TriggeringEventEvaluator) {
<a name="583" href="#583">583</a>               setEvaluator((TriggeringEventEvaluator) triggerPolicy);
<a name="584" href="#584">584</a>           }
<a name="585" href="#585">585</a>           <strong>return</strong> <strong>true</strong>;
<a name="586" href="#586">586</a>       }
<a name="587" href="#587">587</a> 
<a name="588" href="#588">588</a>       <strong>return</strong> false;
<a name="589" href="#589">589</a>   }
<a name="590" href="#590">590</a> 
<a name="591" href="#591">591</a> }
<a name="592" href="#592">592</a> 
<a name="593" href="#593">593</a> <strong>class</strong> DefaultEvaluator implements <a href="../../../../org/apache/log4j/spi/TriggeringEventEvaluator.html">TriggeringEventEvaluator</a> {
<a name="594" href="#594">594</a>   <em>/**<em>*</em></em>
<a name="595" href="#595">595</a> <em>     Is this &lt;code>event&lt;/code> the e-mail triggering event?</em>
<a name="596" href="#596">596</a> 
<a name="597" href="#597">597</a> <em>     &lt;p>This method returns &lt;code>true&lt;/code>, if the event level</em>
<a name="598" href="#598">598</a> <em>     has ERROR level or higher. Otherwise it returns</em>
<a name="599" href="#599">599</a> <em>     &lt;code>false&lt;/code>. */</em>
<a name="600" href="#600">600</a>   <strong>public</strong>
<a name="601" href="#601">601</a>   <strong>boolean</strong> isTriggeringEvent(<a href="../../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> event) {
<a name="602" href="#602">602</a>     <strong>return</strong> event.getLevel().isGreaterOrEqual(Level.ERROR);
<a name="603" href="#603">603</a>   }
<a name="604" href="#604">604</a> }
</pre>
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